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What is in the contrails that jets leave in the sky?

The Aircraft Contrails Factsheet, states that contrails are line-shaped clouds or “condensation trails,” composed of ice particles which are visible behind jet aircraft engines, typically at cruise altitudes in the upper atmosphere.  You can learn more about contrails, including their formation and environmental effects in the Aircraft Contrails Factsheet found at the following URL: http://www.epa.gov/otaq/regs/nonroad/aviation/430f00005.pdf 

Additional detailed information on aircraft emissions can be found in an EPA report, "Evaluation of Air Pollutant Emissions from Subsonic Commercial Jet Aircraft" (April 1999).  This report is also available at EPA’s aviation web site at: http://www.epa.gov/otaq/regs/nonroad/aviation/r99013.pdf

The following Web page “provides information about air pollutant emissions from commercial aviation. It includes regulations, guidance, and other information related to aircraft." Nonroad Engines, Equipment, and Vehicles   - Aircraft: http://www.epa.gov/otaq/aviation.htm

You may wish to contact OTAQ, which has the resources to help you further at the following Web page: http://www.epa.gov/otaq/oms-cmt.htm


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Topic Information
  • Topic #: 23002-22394
  • Date Created: 7/22/2004
  • Last Modified Since: 10/13/2014
  • Viewed: 1963

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